#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int year = 0;
	for (year = 1000; year <= 2000; year++)
	{
		if ((year%4==0) && (year%100!=0) || (year%400==0))
			printf("%d ", year);
	}
	return 0;
}